2021
DOI: 10.1590/s1517-707620210003.13043
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Análise probabilística da vida útil de lajes de concreto armado sujeitas à corrosão por carbonatação via simulação de Monte Carlo

Abstract: RESUMEN O presente trabalho apresenta uma análise mecânico-probabilística de lajes de concreto armado sujeitas à corrosão uniforme, devido à ação do CO2 no concreto, por meio de uma metodologia alternativa que considera formulações analíticas referentes ao comportamento mecânico do concreto acopladas a modelos obtidos via Inteligência Artificial e à técnica de simulação de Monte Carlo. Os períodos de iniciação e propagação da corrosão são determinados por meio do cálculo de probabilidades de ocorrência dos est… Show more

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“…The carbonation process occurs due to the presence of chloride ions at critical rates of atmospheric pollution, which is intensified by the age of the construction (Maldonado-Bandala et al, 2018;Araujo et al, 2020;Silvestro et al, 2020). The use of inadequate cover thicknesses due to design or execution errors can compromise the protection of the steel bars (Fusco, 2008;Malheiro et al, 2014;Felix e Carrazedo, 2021). Furthermore, the choice of cement, additives, and additions can mitigate or intensify the corrosive potential (Silva et al, 2015;Trevisol et al, 2017;Dietrich et al, 2017;Teixeira et al, 2021).…”
Section: Introductionmentioning
confidence: 99%
“…The carbonation process occurs due to the presence of chloride ions at critical rates of atmospheric pollution, which is intensified by the age of the construction (Maldonado-Bandala et al, 2018;Araujo et al, 2020;Silvestro et al, 2020). The use of inadequate cover thicknesses due to design or execution errors can compromise the protection of the steel bars (Fusco, 2008;Malheiro et al, 2014;Felix e Carrazedo, 2021). Furthermore, the choice of cement, additives, and additions can mitigate or intensify the corrosive potential (Silva et al, 2015;Trevisol et al, 2017;Dietrich et al, 2017;Teixeira et al, 2021).…”
Section: Introductionmentioning
confidence: 99%